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# Copyright (C) 2017-2020 The Software Heritage developers
# See the AUTHORS file at the top-level directory of this distribution
# License: GNU Affero General Public License version 3, or any later version
# See top-level LICENSE file for more information
import os
from django.http import HttpResponse
from django.shortcuts import render, redirect
from django.template.defaultfilters import filesizeformat
import sentry_sdk
from swh.web.common import service
from swh.web.common.utils import (
reverse, gen_path_info
)
from swh.web.common.exc import handle_view_exception, NotFoundExc
from swh.web.browse.utils import (
get_directory_entries, get_snapshot_context,
get_readme_to_display, get_swh_persistent_ids,
gen_link
)
from swh.web.browse.browseurls import browse_route
@browse_route(r'directory/(?P<sha1_git>[0-9a-f]+)/',
r'directory/(?P<sha1_git>[0-9a-f]+)/(?P<path>.+)/',
view_name='browse-directory',
checksum_args=['sha1_git'])
def directory_browse(request, sha1_git, path=None):
"""Django view for browsing the content of a directory identified
by its sha1_git value.
The url that points to it is
:http:get:`/browse/directory/(sha1_git)/[(path)/]`
"""
root_sha1_git = sha1_git
try:
if path:
dir_info = service.lookup_directory_with_path(sha1_git, path)
sha1_git = dir_info['target']
dirs, files = get_directory_entries(sha1_git)
origin_url = request.GET.get('origin_url', None)
if not origin_url:
origin_url = request.GET.get('origin', None)
snapshot_context = None
if origin_url:
try:
snapshot_context = get_snapshot_context(origin_url=origin_url)
except NotFoundExc:
raw_dir_url = reverse('browse-directory',
url_args={'sha1_git': sha1_git})
error_message = \
('The Software Heritage archive has a directory '
'with the hash you provided but the origin '
'mentioned in your request appears broken: %s. '
'Please check the URL and try again.\n\n'
'Nevertheless, you can still browse the directory '
'without origin information: %s'
% (gen_link(origin_url), gen_link(raw_dir_url)))
raise NotFoundExc(error_message)
if snapshot_context:
snapshot_context['visit_info'] = None
except Exception as exc:
return handle_view_exception(request, exc)
path_info = gen_path_info(path)
query_params = {'origin': origin_url}
breadcrumbs = []
breadcrumbs.append({'name': root_sha1_git[:7],
'url': reverse('browse-directory',
url_args={'sha1_git': root_sha1_git},
query_params=query_params)})
for pi in path_info:
breadcrumbs.append({'name': pi['name'],
'url': reverse('browse-directory',
url_args={'sha1_git': root_sha1_git,
'path': pi['path']},
query_params=query_params)})
path = '' if path is None else (path + '/')
for d in dirs:
if d['type'] == 'rev':
d['url'] = reverse('browse-revision',
url_args={'sha1_git': d['target']},
query_params=query_params)
else:
d['url'] = reverse('browse-directory',
url_args={'sha1_git': root_sha1_git,
'path': path + d['name']},
query_params=query_params)
sum_file_sizes = 0
readmes = {}
for f in files:
query_string = 'sha1_git:' + f['target']
f['url'] = reverse('browse-content',
url_args={'query_string': query_string},
query_params={'path': root_sha1_git + '/' +
path + f['name'],
'origin': origin_url})
if f['length'] is not None:
sum_file_sizes += f['length']
f['length'] = filesizeformat(f['length'])
if f['name'].lower().startswith('readme'):
readmes[f['name']] = f['checksums']['sha1']
readme_name, readme_url, readme_html = get_readme_to_display(readmes)
sum_file_sizes = filesizeformat(sum_file_sizes)
dir_metadata = {"directory": sha1_git,
"number of regular files": len(files),
"number of subdirectories": len(dirs),
"sum of regular file sizes": sum_file_sizes}
vault_cooking = {
'directory_context': True,
'directory_id': sha1_git,
'revision_context': False,
'revision_id': None
}
swh_objects = [{'type': 'directory', 'id': sha1_git}]
swh_ids = get_swh_persistent_ids(
swh_objects=swh_objects, snapshot_context=snapshot_context)
heading = 'Directory - %s' % sha1_git
if breadcrumbs:
dir_path = '/'.join([bc['name'] for bc in breadcrumbs]) + '/'
heading += ' - %s' % dir_path
return render(request, 'browse/directory.html',
{'heading': heading,
'swh_object_id': swh_ids[0]['swh_id'],
'swh_object_name': 'Directory',
'swh_object_metadata': dir_metadata,
'dirs': dirs,
'files': files,
'breadcrumbs': breadcrumbs,
'top_right_link': None,
'readme_name': readme_name,
'readme_url': readme_url,
'readme_html': readme_html,
'snapshot_context': snapshot_context,
'vault_cooking': vault_cooking,
'show_actions_menu': True,
'swh_ids': swh_ids})
@browse_route(r'directory/resolve/content-path/(?P<sha1_git>[0-9a-f]+)/(?P<path>.+)/', # noqa
view_name='browse-directory-resolve-content-path',
checksum_args=['sha1_git'])
def _directory_resolve_content_path(request, sha1_git, path):
"""
Internal endpoint redirecting to data url for a specific file path
relative to a root directory.
"""
try:
path = os.path.normpath(path)
if not path.startswith('../'):
dir_info = service.lookup_directory_with_path(sha1_git, path)
if dir_info['type'] == 'file':
sha1 = dir_info['checksums']['sha1']
data_url = reverse('browse-content-raw',
url_args={'query_string': sha1})
return redirect(data_url)
except Exception as exc:
sentry_sdk.capture_exception(exc)
return HttpResponse(status=404)

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